Sigma 210306 18-35mm F1.8 DC HSM Lens for Nikon APS-C DSLRs (Black) + 3 Piece Filter Kit (UV-CPL-FLD) + 4 Piece Macro Fi Aperture Range: f/1.8-16 Designed for APS-C-Sized Sensors Hyper Sonic AF Motor Internal Focusing and Zoom Design Four Aspherical & 5 SLD Glass Elements